The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 14, 2015
Filed:
Mar. 02, 2010
Tetsuya Tanaka, Shizuoka, JP;
Hiroki Morioka, Shizuoka, JP;
Kaoru Aoki, Shizuoka, JP;
Makoto Hirai, Shizuoka, JP;
Shinya Hanatani, Shizuoka, JP;
Tetsuya Tanaka, Shizuoka, JP;
Hiroki Morioka, Shizuoka, JP;
Kaoru Aoki, Shizuoka, JP;
Makoto Hirai, Shizuoka, JP;
Shinya Hanatani, Shizuoka, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A classifying apparatus including: a rotor with a plurality of annularly disposed blades, which rotates; and a louver with a plurality of blades which are disposed at an outer circumferential portion of the rotor so as to supply from the outer circumferential portion a fluid for dispersing and classifying a powder material, wherein the powder material is supplied to a gap between the rotor and the louver and centrifugally classified into fine powder and coarse powder, and wherein at least one of the following relationships is satisfied: Relationship (1): α≧50° Relationship (2): D/D≧1.17 where α denotes an angle formed between imaginary lines connecting the center of the rotor with both ends of each blade of the louver, Ddenotes a diameter of the rotor, and Ddenotes an inner diameter of the louver.